diff --git a/arch/x86/tools/mcreboot-smp-x86.sh.in b/arch/x86/tools/mcreboot-smp-x86.sh.in
index 83bb9217..c6bde2cf 100644
--- a/arch/x86/tools/mcreboot-smp-x86.sh.in
+++ b/arch/x86/tools/mcreboot-smp-x86.sh.in
@@ -324,8 +324,16 @@ if ! grep ihk_smp_x86 /proc/modules &>/dev/null; then
 		error_exit "ihk_loaded"
 	fi
 
-	# Free MCDRAM (special case for OFP SNC-4 mode)
+	# Offline-reonline RAM (special case for OFP SNC-4 mode)
 	if [ "`hostname | grep "c[0-9][0-9][0-9][0-9].ofp"`" != "" ] && [ "`cat /sys/devices/system/node/online`" == "0-7" ]; then
+		for i in  0 1 2 3; do
+			find /sys/devices/system/node/node$i/memory*/ -name "online" | while read f; do
+				echo 0 > $f 2>&1 > /dev/null;
+			done
+			find /sys/devices/system/node/node$i/memory*/ -name "online" | while read f; do
+				echo 1 > $f 2>&1 > /dev/null;
+			done
+		done
 		for i in 4 5 6 7; do
 			find /sys/devices/system/node/node$i/memory*/ -name "online" | while read f; do
 				echo 0 > $f 2>&1 > /dev/null;